“The path is not of a legal form” while installing the Dynamics CRM Outlook client

I was installing the Data Migration Wizard on a Client Server. After selecting the install directory, I received an error message saying “The path is not of a legal form”.

This path is not of a legal form

However, the specified folder was “C:\Program Files\<an install directory>” and it was present on the C drive. After a few searches on the Web, I found someone having a similar issue while installing the CRM Data Migration Manager.Their solution was to update manually the registry.

Key: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\
Installer\UserData\S-1-5-18\Products59DD8CB00184F24E99A62CF4D6109FA\InstallProperties]

Name: InstallLocation
Set the Data value to “C:\Program Files\Microsoft Dynamics CRM”

After this modification, setup continued without an error (this was empty on my installation).